He added that this could be the case of both Turkish military officers' rotation, and of the expansion of their ranks.

"Last night, new reinforcements arrived. Pieces of artillery, in particular, were delivered," Alwan said, specifying that they had been delivered to the observation units located in the Idlib de-escalation zone.

While the Syrian government has regained control over most of the country's territories following several years of armed conflicts with the jihadist groups, the Idlib de-escalation zone remains a stronghold of terrorist activity and is still being cleared of terrorists.